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Low-pressure two-stage compression screw air compressors are specifically designed to produce compressed air at lower pressures (typically 3-8 bar). They employ "two-stage compression" technology, where air is compressed in series by two main compressors to precisely generate the required low pressure, rather than being depressurized from high pressure. The core purpose is to achieve maximum energy savings.
Product Parameters
5.5 bar Low-pressure Two-stage PM VSD Screw Air Compressor | ||||||
Model | Air Delivery (m³/min) | Power (kW/hp) | Noise dB(A) | Outlet diameter | Dimensions(mm) | Weight (kg) |
| 5.5 bar | L*W*H | |||||
| RL125APMII | 23.0 | 90/125 | 72 | DN80 | 2604*1904*1892 | 2700 |
| RL150APMII | 27.90 | 110/150 | 72 | DN80 | 2604*1904*1892 | 3200 |
| RL175APMII | 33.30 | 132/175 | 72 | DN100 | 3000*1900*1950 | 3100 |
Low pressure air compressor features
1. Ultra-high energy efficiency: A core advantage. Optimized for low pressure, it saves 15%-40% more energy than the "high-pressure compressor + pressure reduction" mode.
2. Stable and reliable: Low-load operation results in less component wear and a longer lifespan.
3. Large air output: Provides a larger volume of compressed air than a high-pressure compressor at the same power output.
4. Intelligent control: Integrated frequency converter and intelligent control system, outputting on demand and avoiding waste.
Application Industries
Primarily used in fields requiring stable, high-flow-rate, low-pressure air:
• Textiles: Air-jet looms
• Chemicals: Material conveying, fermentation
• Lithium-ion batteries/Photovoltaics: Drying, coating
• Cement/Glass: Material conveying
• Food and Beverages: Filling, fermentation
Frequently Asked Questions (FAQ)
• Q1: Why is it better than a regular air compressor with a pressure reducing valve?
A: Regular air compressors produce high pressure and then reduce it, resulting in a huge waste of energy. Low-pressure compressors produce on demand, saving electricity directly at the source.
• Q2: Is it worth the investment despite the higher price?
A: Although the initial investment is higher, the electricity savings are significant. The investment cost can usually be recovered within 1-3 years through the difference in electricity prices, resulting in a high long-term return.
• Q3: How to choose a model?
A: Key points to confirm:
① Your actual working pressure requirement (bar)
② Your maximum air consumption (m³/min).
• Q4: Is maintenance complicated?
A: Maintenance items are similar to those of a regular screw compressor (oil changes, filter replacements, etc.). Due to the lower operating load, the core unit typically has a longer lifespan.
Low-pressure two-stage compression screw air compressors are specifically designed to produce compressed air at lower pressures (typically 3-8 bar). They employ "two-stage compression" technology, where air is compressed in series by two main compressors to precisely generate the required low pressure, rather than being depressurized from high pressure. The core purpose is to achieve maximum energy savings.
Product Parameters
5.5 bar Low-pressure Two-stage PM VSD Screw Air Compressor | ||||||
Model | Air Delivery (m³/min) | Power (kW/hp) | Noise dB(A) | Outlet diameter | Dimensions(mm) | Weight (kg) |
| 5.5 bar | L*W*H | |||||
| RL125APMII | 23.0 | 90/125 | 72 | DN80 | 2604*1904*1892 | 2700 |
| RL150APMII | 27.90 | 110/150 | 72 | DN80 | 2604*1904*1892 | 3200 |
| RL175APMII | 33.30 | 132/175 | 72 | DN100 | 3000*1900*1950 | 3100 |
Low pressure air compressor features
1. Ultra-high energy efficiency: A core advantage. Optimized for low pressure, it saves 15%-40% more energy than the "high-pressure compressor + pressure reduction" mode.
2. Stable and reliable: Low-load operation results in less component wear and a longer lifespan.
3. Large air output: Provides a larger volume of compressed air than a high-pressure compressor at the same power output.
4. Intelligent control: Integrated frequency converter and intelligent control system, outputting on demand and avoiding waste.
Application Industries
Primarily used in fields requiring stable, high-flow-rate, low-pressure air:
• Textiles: Air-jet looms
• Chemicals: Material conveying, fermentation
• Lithium-ion batteries/Photovoltaics: Drying, coating
• Cement/Glass: Material conveying
• Food and Beverages: Filling, fermentation
Frequently Asked Questions (FAQ)
• Q1: Why is it better than a regular air compressor with a pressure reducing valve?
A: Regular air compressors produce high pressure and then reduce it, resulting in a huge waste of energy. Low-pressure compressors produce on demand, saving electricity directly at the source.
• Q2: Is it worth the investment despite the higher price?
A: Although the initial investment is higher, the electricity savings are significant. The investment cost can usually be recovered within 1-3 years through the difference in electricity prices, resulting in a high long-term return.
• Q3: How to choose a model?
A: Key points to confirm:
① Your actual working pressure requirement (bar)
② Your maximum air consumption (m³/min).
• Q4: Is maintenance complicated?
A: Maintenance items are similar to those of a regular screw compressor (oil changes, filter replacements, etc.). Due to the lower operating load, the core unit typically has a longer lifespan.
